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o. W. KINYON av-A. IT. BROWN..

Rotary Ghuln.

No. 236,500. l Patented Jan. 11,188I.

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UNITED STATES PATENT OEEICE.

CHARLES W. KINYON AND ALEXANDER T. BROWN, OF SCOTT, NEW YORK; SAID BROWNASSIGNOR TO SAID KINYON.

CHURN.

SPECIFICATION forming part of Letters Patent No. 236,500, dated January11, 1881.

Application led J' une 23, 1879. i

To all whom it may concern Be it known that we, CHARLES W. KINYON andALEXANDER T. BROWN, of the town of Scott, in the county of Cort-land andState of 5 New York, have invented certain new and useful Improvementsin Rotary Churns; and we do hereby declare that the following is a full,clear, and exact description of the invention, which will enable othersskilled in the art to 1o which it appertains to make and use the same,

reference being had to the accompanying drawings, and to the letters ofreference marked thereon, which forma part of this specification.

The invention relates to that class of churns known as rotary churns,7and has for its object to furnish a device for ventilation, as will bemore fully hereinafter specified. This ob-v ject we attain by themechanism illustratedin 2o the accompanying drawings, in which- Figure lillustrates a vertical sectional view of our improved churn; Fig, 2, atop view; Fig. 3, a side elevation and Fig. 4, a detached view, showingthe Ventilating-tube with flat- 2 5 tened surfaces, the holding-clasp,and confining-nut.

A indicates the body of a churn mounted on a suitable frame-work, B. Theletter C indicates a plate secured to one side of the churn 3o andprovided with a shaft, C', mounted in a journal, c, which shaft isadapted to receive the motive power. D indicates another plate, securedto the churn on the side opposite to the plate C, and is provided with arhollow.

35 shaft, D', mounted in a journal, d, said hol-- low shaft beingadapted to receive one arm of an elbow Ventilating-tube, E. The insideor vertical arm, e, of the Ventilating-tube E is provided with a hood,F, fitted over the end of 4o said arm, the said hood being provided withopenings f f, which connect with the opening in the upper end of the arme. The arm G, which passes through the hollow shaft D', is provided nearthe elbow with a shoulder, g,

4 5 which is adapted to bear against the inner side of the churn. Theouter end of said arm is screw-threaded and receives a screw-threadednut, g'.

shown at g2, and, by means of an adjustable clasp, H, having eye h' andconnected slot 71,2, 5o said clasp H being vertically adjustable bymeans of a slot, h3, and set-screw h4, as shown, said tube is preventedfrom turning with the shaft through which passes the arm G, and the arme is securely held in a vertical position 55 during the revolution ofthe churn-cylinder.

Ve furnish a cover, I, either of wood or metal, provided with projectingand oppositelyturned hooks It h, adapted to be secured by means ofthumb-screws t' t.

We are aware that it is not new to furnish an elbow vent-tube orventilator having a thumb-screwin an adjustable lever, said thumbscrewbeing intended to hold the ventilatin gtube in a fixed position; butwith such con- 65 struction there is liability to injure the tube by thecontinuous grindingfriction-of the screw when the churn is in operation,as mustbe obvious.

. Having thus described our invention, what 7o we claim, and desire tosecure by Letters Patent, is-

1. The combination of the hollow revolving shaft D', journaled as shown,the nut g', and adjustable clasp H h' h2 h3, with the elbow- 75ventilator E G c, having hood F, provided with connecting-openings ff,and flattened at point of contact with the adjustable clasp H, toprevent turning, substantially as and for the purpose set forth.

2. The clasp H, having slots h' h2 h3, as shown, one to adjustablysecure the same to the frame B, and the other to grasp the flattenedportion g2 ot' the vent-tube E G, combined with said ventilator, thehollow revolving shaft D', and 85 suitable set-screw, h4, as and for thepurpose -set forth.

In testimony that we claim the foregoing as our own we have affixed oursignatures in presence of two witnesses.

CHARLES W. -KINYON. A. T. BROWN.

Witnesses:

O. H. REID, L. SCHULTZ.

